Simplified mechanical perspective for the use of ... schools (1909)
Frederick, Frank Forrest, 1866-1942 · Peoria, Ill., The Manual arts press · leaf 49
cating points in its perimeter by means of known lines. Inthis problem a pointed-arch opening, as a door or window, is drawn.Lines A and B are placed at random. 43 SIMPLIFIED MECHANICAL PERSPECTIVE. Problem XXVIII. It is hoped that students have noticed that while the short diametersof the ellipses… … this problem the method of finding the long diameter of an ellipse repre-senting a circle upon, or parallel to the horizontal plane, is explained. In practice this diameter is located by guess as an ellipse is seldomdrawn large enough to permit the exact location of the long diameterto be found.…
Perspective
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
